Feed-grinder.



M. E. ANDERSON.

FEED GRINDER.

APPLICATION FILED JULYIO. I916. RENFWED MAY 3. 1913.

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Patented July 2, 1918-.

ED STATES PATENT onnron.

MARTIN E. ANDERSON, or on KALB, ILLINOIS, ASSIGNOR To JACOB HAISI-ICOMPANY,

' or DE KALB, ILLINOIS.

FEED-GRINDER.

Specification of Letters Patent.

Application filed July 10, 1916, Serial No. 108,288. Renewed May 3,1918. Serial No. 232,379.

To all whom it may concern:

Be it known that I, MARTIN E. ANDERSON, a citizen of the United States,residing at De Kalb, in the county of Dekalb and State of Illinois, haveinvented certain new and useful Improvements in Feed-Grinders, of whichthe following is a specification.

My invention has reference to feed grinders, of that class which areemployed for reducing corn and other grains to apulveriZed condition.The present device relates more particularly to those parts of themachine which first operate upon the material and reduce it to acondition to be acted upon by the grinding burs. In machines of thiskind the grain is first introduced into a hop per, beneath which is aconcave containing rotary auger devices by which the ears of corn aretorn and broken into small pieces. By the rapid rotary movement of theauger there is a tendency to carry the material round therewith and tossit about in such a way as to interfere with the perfect feed of thematerial, and my invention has special reference to means for preventingthis condition and compelling a more perfect feed operation.

In the drawings: Figure 1 is a vertical cross-section through that partof a machine which embodies my invention. Fig. 2 is a plan View thereof,with the hopper removed.

1 represents a frame, mounted on legs 2, and provided with a concave 3.Rotatably mounted above the concave 3 is a shaft 4,

upon which is fixed a sleeve 5, provided with spiral blades 6.

A hopper 7 is supported on the frame 1, by means of which hopper thegrain is introduced into the machine.

The movement of the auger 5 is in the direction indicated by the arrowin Fig. 1, and at that side of the machine toward which the auger movesa shaft 8 is journaled in bearings 9 on the frame 1. On the shaft 8 isfixed a sleeve 10, provided with a longitudinal plate 11 extendingradially therefrom. The shaft 8 is actuated by.

means of a gear pinion 12 thereon in mesh with and driven by agearwheel13 on the shaft 4. Power is impartedto the shaft 4 by means of a pulley14 fixed thereon, with which suitable'belting can be connected, or

by similar means.

Copies of this patent may be obtained. for

. 11 and side wall of the concave.

wardly by one of such blades will be prevented from moving outwardly andupwardly, but will be forced downwardly into the concave. The spacebetween the plate 11 and either of the blades 6, when in proximity, issuch that an ear of corn of average size could not pass between them.

Just beneath the shaft 8 is a lip 15, of

equal length with the plate 11, and which is in close proximity to saidplate as it passes the same. This lip prevents the ears of corn frombecoming wedged between the plate Any material which comes between suchparts is cut thereby, the operation of the machine being thus aided.

The line of movement of thegrain is downwardly from the hopper alongtheinclined floor at the opposite side to the shaft 8, till it reaches theauger 5, by which it is carried over the shaft 4 and downwardly into theconcave. If the shaft 8 and plate 11 are omitted a considerable part ofthe materialwill become clogged at that side of I W hat I claim as myinvention, and desire to secure by Letters Patent of the United States,is: r- I A device of the class described, comprising a suitablereceptacle provided with a concave; an auger rotatably mounted in saidconcave an auxiliary shaft rotatably mounted inproximity to said augerand provided with a longitudinal plate adapted to cooperate therewith;and a'lip in prox- 1 imity to said plate at the lowest point of its a Vmovement.

Intestimonywhereof I affix my signature I I in the presenceof twowitnesses.

Witnesses: E.MULAnoRE,

AJO. HI Ds.'

five cents each by addressing t e Gommissloner of Patents,washingtomllc." V V 7 'MARTINEI'ANDERS ONf i

